Sell Forging Steel

Description

Chemical  Requirements:
Analysis on cast. To be in accordance with table below
 

Required									For Information only Recomme ndation
C	Mn	Si	P	S	Cr	Mo	Ni	Al	H
0.*3/0.*0	0.*0/0.*0	0.*5/0.*5	≤0.**5	≤0.**5	≤0.**0	≤0.*6	≤0.*5	0.*2/0.*5	≤2ppm
Note: P+S: 0.*4 max, Cr+Ni+Mo≤0.*3.

 
Mechanical Properties Required :
On material at the time of supply.
 
-      Sampling:
Material shall be test per heat and per heat treat load, once Tensile and Three impact.
Test practice in accordance with ASTM A *****0 and ASTM A***4 CL BC, test specimens shall taken with the longitudinal axis located at 1” bellow surface.
 

Surface	Yield/Re 0.2% offset	Tensile/Rm	2” Elongation	Area Red.	Charpy V	Note
BHN	Mpa	PSI	A %	Z %	Ft-lbs	1KSI=6.**5MPa
******0	**5	******0	≥*6	≥*5	*1 J	1ft-lbs=1.**6J
Report 0.6% eul for inform only
*5.4 MM sub surface cheking at least 4” or **2 mm from end of bar: ******0BHN, aiming for ******2BHN

 
General requirements:
 
Forging reduction ratio:≥4:1
Austenite grain: As per ASTM E***-latest, grade **8
Guarantee no crack, no flake, no shrnk hole, no pin hole
Mercury free: non radioactive, no welding. Decarburization is allowed for the RT and then QT bars.
Non-metal inclusion: As per ASTM E**-latest method A
 
Surface condition: rough turned, required a surface finish of **0 RMS or better
 End hole: removed the ends holes.
 Dia. Tolerance: *0/*2mm.
 Out of roundness: within 1.9 mm. Straightness: max. 2mm/m.:≤1.9mm, 2mm/m.
 Forged Bars surface grinding allowed, Must not remove surface bellow nominal diameter.
 Material shall be untrasonic tested in accordance with ASTM A**8 4mm FBH.
°F, *5 minutes per inch. Temper